Answer:
V = (π/3)H(27 – H2) : Please see attachment
a. Volume =26π/3
b.rate of change of the volume with respect to H = 8π
c.H=0.0114 inch
Step-by-step explanation:
Please see attachment
Answer:
y>6
Step-by-step explanation:
5y>30
y>30/5
y>6
1.y varies directly with x
2.substitute the value of x and y in the equation below
y=kx
where k is the constant term
60=20k
k=60\20
k=30
:y=30x.....is the law
To find y when x is 12
You reinstate the law which is y=30x
Then substitutes the value of x to determine y
y=30*12
y=36.
Answer:

Step-by-step explanation:
Required
15 is what percentage of 105
To do this, simply divide 15 by 105 multiplied by 100%.
So, we have:



--- approximated
The word problem only gives you two numbers, so it would be easy to assume that the questions involves those two numbers. However, in this case, the question requires that you calculate another answer first: the number of questions Abel got right. You'll need to subtract 4 from 80, then calculate the percentage of the difference:
80-4=78, and 78/80*100=97.5 percent So it will be 50